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Dr Thermal Sandwich (TI-A8641L) Heatsink Review


In-Depth Look

The Ti-A8641L came in a nice retail package, with directions for installation on the side of the box. Inside the box were just the basics heat sink, thermal grease, and an interesting spec sheet with thermal impedance, wattage of various amd cpu’s ranging from the 1700+ to the 3200+.

The spec sheet was very interesting and I hope more heat sink companies start to include this.

The fan included with this cooler is your standard black 70x70x15mm fan with a 3pin connector. It is labeled by t.i.t.i with the Dr Thermal logo in the center. The fan spins at 3800 rpm with the noise rating being 35dba, and puts out 34.39 cfm. This fan looks very similar to my old Dr Thermal Ti-V77L cooler.

The base came with a protective plastic layer that was very hard to take a picture. This has to be one of the most unique looking bases I have ever seen on a heat sink. In one of the emails I received from T.I.T.I they called this the sandwich cooler and now I see why they call it that. You can clearly see in the pictures that aluminum and copper are sandwiched together to create the base of the heat sink, with the part of the base that touches the core looks to be solid but upon closer inspection it is sandwiched pieces of copper, and is held together with screws. The base had a very good finish and felt very smooth. I’ve seen this process used before on the Zalman line of coolers but T.I.T.I uses larger sizes of copper and aluminum.

The cooler uses a micro fin design with a total of 39 fins. Two of the fins were noticeably bigger than the others on the solid section of the heat sink.

The clip used with the TI-A8641L uses all 6 cleats to secure itself to the socket, and has a nice thumb lever to engage the clip to the socket.


Well this cooler is very easy to install but it did require me to use a flat head screwdriver to attach the bottom clip to the cleats of the socket. After the bottom of the clip snapped into place on the socket, the top thumb lever made it effortless to attach to the top of the socket. I recall my old Dr Thermal cooler was very easy to install too but used a different type of mechanism.

  1. Introduction & Specfications
  2. In-Depth Look & Installation
  3. Testing & Conclusion
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